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Finding the Fourth Proportional to 525,810.40, 788,794.80 and 193,360.48

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Solution

The fourth proportional to 525,810.40, 788,794.80 and 193,360.48 is: 290,069.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,810.40 : 788,794.80 = 193,360.48 : x
  2. Step 2: Convert to fraction form
    525,810.40/788,794.80 = 193,360.48/x
  3. Step 3: Cross multiply
    525,810.40x = 788,794.80 × 193,360.48
  4. Step 4: Simplify right side
    525,810.40x = 152,521,741,149.50
  5. Step 5: Solve for x
    x = 152,521,741,149.50/525,810.40
  6. Step 6: Final answer
    x = 290,069.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.